Purge
gas
..&.
Caution
Avatar spectrometers are sealed and desiccated. The spectrometer
does, however, contain precise optical components that may be
damaged by a moist environment. To protect those components, we
recommend that you obtain an optional purge kit
if
you have
difficulty controlling humidity in your laboratory environment.
Optical damage caused by failure to purge the spectrometer is not
covered under your Thermo Nicolet warranty ....
You may also have a laboratory environment that is contaminated
with solvents or other agents that can corrode spectrometer
components. Purging the spectrometer (forcing dried air or nitrogen
through the spectrometer to eliminate water vapor, carbon dioxide
and other airborne contaminants) will better protect the components.
Although all Avatar spectrometers are sealed and desiccated, we
recommend that you install a source
of
dry air or nitrogen to purge
the spectrometer
of
water vapor, carbon dioxide and volatile
solvents .
..&.
Caution Do not use Argon
as
a purge gas. Argon is a good insulator and
prevents the laser from cooling properly. This significantly shortens
the life
of
the laser and can also cause the source to overheat ....
..&.
Caution The interaction
of
chlorinated solvents, perfluorochlorinated solvents
or other solvents containing halogenated hydrocarbons (for example,
Freon®) with an IR source can corrode spectrometer components. Do
not leave these solvents exposed around the spectrometer any longer
than necessary ....
Purging the spectrometer can also ensure more accurate results. This
is particularly true when you collect data for sample components that
are also present in your laboratory environment.
Note
If
you ordered a microscope, you might need more than one purge
line. Contact Thermo Nicolet Customer Support for more
information ....
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